Proximity sensor



FIG. 1 illustrating a front view of a proximity sensor showing our new design;

FIG. 2 illustrating a back view of a proximity sensor showing our new design

FIG. 3 illustrating a side view of a proximity sensor showing our new design; and,

FIG. 4 illustrating a top view of a proximity sensor showing our new design.

The wording “RoxProx™” does not form a part of the claimed design and is disclaimed as shown in the broken lines on FIG. 1. 

The ornamental design for a proximity sensor, as shown and described. 